HVDC DC/DC MODULAR MULTILEVEL DC/DC CONVERTER FOR HVDC APPLICATIONS

摘要

The present invention relates to a DC / DC voltage converter (15) suitable for continuous operation for connecting HVDC grids having different voltages, wherein the DC / DC voltage converter is connected in series with each other to form a converter series circuit One partial converter 8 and a second partial converter 11 and the converter series circuit 16 extends between the DC terminals 2 and 3 of the DC voltage connection 1 and the second partial converter 11 extend between the DC terminals 5, 6 of the second DC voltage connection 4 and the first partial converter 8 and the second partial converter 11 are connected to each other via the power exchange means 14, So that the exchange of electric power between the first partial converter 8 and the second partial converter 11 is enabled through the power exchange means 14. [